<template>

  <top-nav v-if="$route.meta.showNavTop !== false"></top-nav>
  <router-view></router-view>
</template>

<script>
import TopNav from '@/pages/layout/TopNav.vue'
import BotMenu from '@/pages/layout/BotMenu.vue'

// import HelloWorld from "./components/HelloWorld.vue";
// App路由启动组件
export default {
  name: "App",
  components:{TopNav,BotMenu},
   mounted() {
     // 根据屏幕尺寸，初始化动态设置字体大小(rem),并且在屏幕尺寸变化的时候,触发修改字体大小
    (function (win, lib) {
      var doc = win.document;
      var docEl = doc.documentElement;
      var metaEl = doc.querySelector('meta[name="viewport"]');
      var flexibleEl = doc.querySelector('meta[name="flexible"]');
      var dpr = 0;
      var scale = 0;
      var tid;
      var flexible = lib.flexible || (lib.flexible = {});

      if (metaEl) {
        console.warn("将根据已有的meta标签来设置缩放比例");
        var match = metaEl
          .getAttribute("content")
          .match(/initial-scale=([\d.]+)/);
        if (match) {
          scale = parseFloat(match[1]);
          dpr = parseInt(1 / scale);
        }
      } else if (flexibleEl) {
        var content = flexibleEl.getAttribute("content");
        if (content) {
          var initialDpr = content.match(/initial-dpr=([\d.]+)/);
          var maximumDpr = content.match(/maximum-dpr=([\d.]+)/);
          if (initialDpr) {
            dpr = parseFloat(initialDpr[1]);
            scale = parseFloat((1 / dpr).toFixed(2));
          }
          if (maximumDpr) {
            dpr = parseFloat(maximumDpr[1]);
            scale = parseFloat((1 / dpr).toFixed(2));
          }
        }
      }

      if (!dpr && !scale) {
        var isAndroid = win.navigator.appVersion.match(/android/gi);
        var isIPhone = win.navigator.appVersion.match(/iphone/gi);
        var devicePixelRatio = win.devicePixelRatio;
        if (isIPhone) {
          // iOS下，对于2和3的屏，用2倍的方案，其余的用1倍方案
          if (devicePixelRatio >= 3 && (!dpr || dpr >= 3)) {
            dpr = 3;
          } else if (devicePixelRatio >= 2 && (!dpr || dpr >= 2)) {
            dpr = 2;
          } else {
            dpr = 1;
          }
        } else {
          // 其他设备下，仍旧使用1倍的方案
          dpr = 1;
        }
        scale = 1 / dpr;
      }

      docEl.setAttribute("data-dpr", dpr);
      window.dpr = dpr;

      if (!metaEl) {
        metaEl = doc.createElement("meta");
        metaEl.setAttribute("name", "viewport");
        metaEl.setAttribute(
          "content",
          "initial-scale=" +
            scale +
            ", maximum-scale=" +
            scale +
            ", minimum-scale=" +
            scale +
            ", user-scalable=no"
        );
        if (docEl.firstElementChild) {
          docEl.firstElementChild.appendChild(metaEl);
        } else {
          var wrap = doc.createElement("div");
          wrap.appendChild(metaEl);
          doc.write(wrap.innerHTML);
        }
      }

      function refreshRem() {
        var width = docEl.getBoundingClientRect().width;
        if (width / dpr > 540) {
          width = 540 * dpr;
        }
        var rem = width / 10;
        docEl.style.fontSize = rem + "px";
        flexible.rem = win.rem = rem;
        // alert(rem)
      }

      win.addEventListener(
        "resize",
        function () {
          clearTimeout(tid);
          tid = setTimeout(refreshRem, 300);
        },
        false
      );
      win.addEventListener(
        "pageshow",
        function (e) {
          if (e.persisted) {
            clearTimeout(tid);
            tid = setTimeout(refreshRem, 300);
          }
        },
        false
      );

      refreshRem();

      flexible.dpr = win.dpr = dpr;
      flexible.refreshRem = refreshRem;
      flexible.rem2px = function (d) {
        var val = parseFloat(d) * this.rem;
        if (typeof d === "string" && d.match(/rem$/)) {
          val += "px";
        }
        return val;
      };
      flexible.px2rem = function (d) {
        var val = parseFloat(d) / this.rem;
        if (typeof d === "string" && d.match(/px$/)) {
          val += "rem";
        }
        return val;
      };
    })(window, window["lib"] || (window["lib"] = {}));
  }, 
  metaInfo: {
    // if no subcomponents specify a metaInfo.title, this title will be used
    title: "Default Title",
    // all titles will be injected into this template
    titleTemplate: "%s | My Awesome Webapp",
  },
};
</script>

<style>
.el-message{
  min-width: 80% !important;
}
@font-face {
  font-family: 'iconfont';
  src: url('./assets/font/iconfont.ttf?t=1646884326714') format('truetype');
}

.iconfont {
  font-family: "iconfont" !important;
  font-size: 16px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
/* #app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
} */
</style>
